S1·E24 The Gun That Murdered Lincoln

Yancy is arrested on a charge of high treason. His crime: selling John Wilkes Booth the gun that killed President Abraham Lincoln. While Derringer is held in solitary confinement, his friends must refute forged evidence and find where the his matched set of pistols, the ones alleged purchased by Booth, were hidden when renegades ransacked his plantation during the Civil War.